CVE-2025-71228
Received Received - Intake

Kernel Page Fault Vulnerability in Linux LoongArch VM_NONE/VM_SHARED

Publication date: 2026-02-18

Last updated on: 2026-02-27

Assigner: kernel.org

Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

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Meta Information

Published
2026-02-18
Last Modified
2026-02-27
Generated
2026-07-06
AI Q&A
2026-02-18
EPSS Evaluated
2026-02-26
NVD
CVE-2025-71228
EUVD
EUVD-2025-207841

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability exists in the Linux kernel on the LoongArch architecture. It involves an incorrect setting of the protection_map[] for VM_NONE and VM_SHARED memory areas on 32-bit platforms. Specifically, the _PAGE_PROTNONE value is 0, so setting a virtual memory area (VMA) to VM_NONE or VM_SHARED causes pages to be marked as non-present, which leads to a kernel page fault (Oops). The fix replaces _PAGE_PROTNONE with _PAGE_PRESENT to set the correct protection_map[].

Impact Analysis

This vulnerability can cause the Linux kernel to crash due to a page fault when handling certain memory areas (VM_NONE or VM_SHARED) on 32-bit LoongArch platforms. Such crashes (kernel Oops) can lead to system instability, potential denial of service, and unexpected reboots, impacting system availability.

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